Google is now a wholly owned subsidiary of a new company called "Alphabet", to be run by Larry Page and Sergei Brin. Sundar Pichai will be CEO of Google, which will remain focused on its core of web-related products. Alphabet will serve as and umbrella for Google's now quite diverse projects, with a separate CEO for each. By way of example, the announcement sites a Life Sciences group, and a group called "Calico" which is focused on longevity.
All stock in Google will be converted to Alphabet stock, with the same rights and number of shares.
The announcement:
https://abc.xyz/ [abc.xyz]